spectrophotometric analysis of copper in brass - chemisstry prac

[Sarahisme]

would it be possible to get some help (i.e. check that i am not making giant mistakes) with the first problems about my chem. prac. that is at the end of the attached word document?

[Sarahisme]

my answer is that its maximum absorbance of the copper-ammonia complex is more than either the copper sulfate or copper nitrate ones.

[Sarahisme]

actually, lol, can i check one of my answers for the second question?

 

here is the other information needed........

[Sarahisme]

i get....

 

flask 1 (0ml of Cu2+): 0 M

flask 2 (5ml of Cu2+): 0.0009 M

flask 3 (10ml of Cu2+): 0.0018 M

 

how'd i do on the questions? lol hopefully good.... :S

[Sarahisme]

?? anyone ??

[Sarahisme]

i sorta need this help within the next 12 hours, lol

[akcapr]

i hate to break your posting spree but i cant find the questions, and, sadly,no offense, i doubt anyone will look through that huge document of yours to find them which is probly y u have so few posts.

[Sarahisme]

oh its not a huge document, it just contains 3 pictures, thtas why its size is so big